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发明名称
Controlling apparatus
摘要
申请公布号
US2081542(A)
申请公布日期
1937.05.25
申请号
US19350004004
申请日期
1935.01.30
申请人
INGERSOLL-RAND COMPANY
发明人
KIDNEY CARLETON B.
分类号
E21B43/017;F04B49/22
主分类号
E21B43/017
代理机构
代理人
主权项
地址
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